Thank you for the screenshot, your registry is set correctly, this is most likely caused by being on an AD Domain, I apologize, Community is just a consumer forum, due to the scope of your question can you please post this question to our sister forum on Microsoft Q&A (The System Administrators and IT Pro Forum).
Over there you will have access to a host of System Administrators and IT Pro experts and will get a knowledgeable and quick answer to this question.